Following the March 10th update to Fields of Mistria, the Fire Seal is finally accessible after completing the preceding altars. Unlocking it requires four specific offerings: a Faceted Rock Gem, Rockroot, an Emerald, and a Sealing Scroll. Let's break down how to obtain each item.
Where to Find the Faceted Rock Gem

This rare artifact is located within the mines of Fields of Mistria. Ensure you have the updated game version and explore mine floors 50-59. We discovered it on Floor 56 after some digging. Use your pickaxe or shovel to unearth it from marked ground spots. Be prepared for a bit of a grind, as it's a relatively uncommon find.
Where to Find Rockroot

Rockroot is a common forageable plant found on mine floors 50-59. If you frequently explore the mines, you might already have one. Look for a dark, root-like plant (pictured above). You only need a single Rockroot to complete the Priestess' altar.
Where to Find an Emerald

Emeralds are the easiest offering to acquire. They're found as geodes on mine floors 50-59 and are relatively common. You can also find them by breaking large boulders in Mistria, purchase them from Balor's Wagon for 200 tesserae, or craft them at the Stone Refinery (unlocked in the March 2025 update).
How to Get the Sealing Scroll

The Sealing Scroll is obtained through a quest triggered by speaking with Juniper after discovering the Fire Seal. You'll then need to commission Balor to acquire the scroll, requiring these materials:
- 10 Silver Ingots
- 10 Rubies
- 10 Sapphires
- 10 Emeralds
These materials are commonly found in the mines. Once gathered, deposit them in the bin near Balor's Wagon.
Unlocking the Fire Seal
Once you possess the Sealing Scroll, Faceted Rock Gem, Emerald, and Rockroot, return to Floor 60 of the mines and make your offering. This will unlock the Fire Seal, revealing a new biome and further content during Early Access.
NOTE: Fields of Mistria is currently in Early Access, and content is subject to change. The above information is accurate as of Version 0.13.0 and will be updated as needed.
Fields of Mistria is available now on Steam Early Access.